Home / 906,721-1,360,073.38-338,082.76

Finding the Fourth Proportional to 906,721, 1,360,073.38 and 338,082.76

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Solution

The fourth proportional to 906,721, 1,360,073.38 and 338,082.76 is: 507,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,721 : 1,360,073.38 = 338,082.76 : x
  2. Step 2: Convert to fraction form
    906,721/1,360,073.38 = 338,082.76/x
  3. Step 3: Cross multiply
    906,721x = 1,360,073.38 × 338,082.76
  4. Step 4: Simplify right side
    906,721x = 459,817,362,112.93
  5. Step 5: Solve for x
    x = 459,817,362,112.93/906,721
  6. Step 6: Final answer
    x = 507,121.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.